Swachh Rena Affordable indoor air cleaner retrofit

Breathe clean, live better – retrofit for healthier indoors

Swachh.io is a tech startup working on solutions for pollution. Currently there are 2 products that are ready for production - SN95 Face Mask and Rena Air Cleaner. Rena is a low cost air cleaner that can be attached to a ceiling fan to make it into an air purifier. It works both in winter and summer. Rena’s filter options include washable and single use filters. SN95 is an N95 mask with integrated face shield with anti-fog surface treatment. The wide face shield covers ears which is ideal for medicos. Other than indoor air cleaners, Swachh is also developing a low cost outdoor air purifier with multiple patents and products in the pipeline. This includes SaaS products, biodegradable filtration media, filterless, ionic, mist and other methods of particulate matter, VOC and other air pollutants.


Swachh-Rena is an innovative retrofit device that transforms standard ceiling fans into cost-effective air purifiers, addressing indoor air pollution in an affordable and accessible manner. By adding a base adapter and specialized filters to a regular ceiling fan, Swachh-Rena effectively improves indoor air quality without requiring a dedicated air purification unit. Designed for Indian households, where ceiling fans are ubiquitous, this retrofit minimizes the need for additional appliances and reduces the overall cost of ownership, making it ideal for budget-conscious and eco-conscious users.

Smart, simple, and effective air cleaning technology

  • Technology Readiness Level (TRL): 8

  • Device Structure: Swachh-Rena comprises a base or adapter that attaches to the blades of a ceiling fan, with options for washable or single-use fine filters. The setup is designed for straightforward installation, maintaining ease of use and minimal upkeep.

  • Filter Options:The retrofit supports biodegradable filter options, offering an environmentally friendly alternative to conventional filters. Both washable and disposable filters are available, ensuring flexibility and low operational costs.

  • Seasonal Functionality: Optimized for both summer and winter, Swachh-Rena adapts to airflow needs across seasons. In winter, the retrofit reduces circulation, while in summer, it maintains air movement without hindrance.

Join the DRIIV for Cleaner Air and a Healthier Tomorrow

sustainability@driiv.co.in 011 - 2654 - 8590

Affordable air quality, lasting health benefits

Swachh-Rena is implemented as a low-cost air purification solution aimed at enhancing indoor air quality in various settings:

  • Primary Users: This retrofit is well-suited for low- to middle-income households, schools, colleges, offices, and healthcare facilities, including primary health centers and recovery rooms for patients.
  • Environmental Impact: By leveraging existing ceiling fans, Swachh-Rena provides an economical and sustainable air quality solution that minimizes additional energy and resource demands. The system's biodegradable and washable filter options further contribute to a reduced ecological footprint.
  • Targeted Outcomes: By improving air quality in commonly populated spaces, Swachh-Rena addresses indoor pollutants, making it an impactful solution for individuals with respiratory sensitivities and for regions with high particulate matter levels.

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Mr. Karan Rao

CEO & Founder, Swachh IO

Swachh Rena controls air pollution with its retrofit capabilities, enabling seamless integration into existing ceiling fans. By addressing particulate pollution in real time, it offers efficient, sustainable, and scalable solutions for cleaner indoor environment.

Ms. Shipra Misra

MD & CEO, DRIIV

The innovative retrofit design empowers indoor environment to enhance air quality with minimal infrastructure changes. The solution is cost-effective and ideal for adoption in schools and public places.